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Finding the Fourth Proportional to 552,335.63, 762,156.20 and 307,262.45

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Solution

The fourth proportional to 552,335.63, 762,156.20 and 307,262.45 is: 423,984.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,335.63 : 762,156.20 = 307,262.45 : x
  2. Step 2: Convert to fraction form
    552,335.63/762,156.20 = 307,262.45/x
  3. Step 3: Cross multiply
    552,335.63x = 762,156.20 × 307,262.45
  4. Step 4: Simplify right side
    552,335.63x = 234,181,983,968.24
  5. Step 5: Solve for x
    x = 234,181,983,968.24/552,335.63
  6. Step 6: Final answer
    x = 423,984.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.